Testing device and charging system

The utility model relates to the technical field of charging and discharging testing, in particular to a testing device and a charging system.The testing device is used for conducting charging and discharging testing on first storage and charging equipment and second storage and charging equipment, the first storage and charging equipment is provided with a first charging interface, and the second storage and charging equipment is provided with a second charging interface. The first charging interface is suitable for being connected with a power interface in the first charging interface and the second charging interface, so that the first storage and charging equipment is electrically connected with the second storage and charging equipment; and the test control unit is suitable for being connected with signal interfaces in the first charging interface and the second charging interface so as to communicate with the first storage and charging equipment and the second storage and charging equipment respectively, so that the first storage and charging equipment and the second storage and charging equipment are controlled to carry out charging and discharging tests. Therefore, the two storage and charging devices are electrically connected through the testing device, and the two storage and charging devices are controlled to charge and discharge through communication with the two storage and charging devices, so that bidirectional charge and discharge testing of the two storage and charging devices can be realized, the testing is convenient and fast, and the cost is low.